Mond power



Jan. 27, 1931. F. BowaRs ET AL BOILER CLEANER original Filed March 5, 1923 5 sheets-sheet 1 5507A/ Zou/em* 977242215 ,$72060- Jan. 27, 1931. F. BOWERS ET AL 11,790,403

BOILER CLEANER original Filed March 5, 192s I5 Sheets-sheet 2 @kwis Jan. 27, 1931. F. BOWERS ET AL BOILER CLEANER 3 Sheets-Sheet 3 Original Filed March 5, 1925 gjm vente@ Han/f Zawers /fafWM/f 57205 boiler tube,

Patented VJan. 27, 1931 UNITED STATES PATENT OFFICE FRANK BOWERS AND NORMAN L. snow,` OE DETROIT, MICHIGAN, AssIGNORs TO DIA,-

MOND POWER srECIALTY CORPORATION, OE DETROIT, MICHIGAN, A CoRroRA- TION OE MICHIGAN original application meanarch 5, iazasrial No. 623,031.' Divided and thisappiicauonniea FebruaryA BOILER CLEANER 1s, 1926. serian Np. 39,185.

1 `This invention relatesy to boiler cleaners and refers particularly to boiler cleaners employing the discharge ofsteani orother clean ing fluid'to dislodge soot deposits and other accumulations from the boiler tubes and other parts of the boiler to be cleaned.

One-of the objects of the invention resides in providing means for positioning the blower element longitudinally with respect to a a connection being established between the element and boiler tube so that the discharge nozzles vof the blower element will occupy the'desired relation tothe boiler tubesand boiler tube spaces. The invention also provides means whereby manuall adjustment maybe made tov change as desired, or.

initially` locate the blower element spectto the boiler tubes.` y

Another object of the invention is to provide means accessible eXteriorly' of the boiler for accurately adjusting a blower pipe longitudinallyto properly locate the nozzlesthereof with relation to the boiler parts to be cleaned.l In other=instances the adjustment means is located in theboiler wall or in the boilersetting proper.

It is also a with refeature of the invention that provision is made for adjustment of the blower pipe longitudinally or for complete withdrawal of said pipe from theboiler without taking the latter out of service.y

This application is a division of our copending application Serial Number 623,031, filed March 5, 1923.

In the drawings:

Figure l is a sectional view showing ablower element equipped with the adjusting means; i

Figure 2 is a cross sectional view along 2 2 ofV Figure 1 showing the valve mechanism;

Figures?) and 4: are cross sectional views of the adjustment means taken respectively upon lines 3-3 and 4--4 of Figure 1; g

. Figure 5 is a detail cross section on line 5--5 of Figure l showing 'a feature of the valve control; y v

Figure 6 is a sectional view similar to Figure l but showing the head in elevation and showinga modified form of adjustment meansV for the blower unit g Figure 7 is a view illustrating an alterna` tive connection between one ofthe boiler tubes and the blower-pipe;

Figure 8 is a view similar to Figure 1 show-- ing an alternative construction;

`Figure 9 is. a cross 'sectionon line 9-,9 of Figure-'8.' f

In ,these views the reference character A ,designates a boiler walland B a number of the boiler tubes. C is a rotative blower pipeY mounted transversely of said tubes and passing through an opening C2 in said wall, said pipe being provided 4with suitable discharge nozzles C. Eirteriorly of the wall A a chambered headDis mounted fast upon the pipe C, said'head having its outer end closed and beingl formed with an inlet port D? for steam orsome other cleaning fluid. For rotatingthe blower pipe a shaftv'E is connected to the head D to drive the same', Vsaid shaft having a squared extremity E engaging in a correA vsponding. socket vin" the closed end of said head. F designates a chain wheel for actuating theV blower pipe, said wheel being screw threaded upon a reduced stud F formed upon the outer end ofthe shaft E. G and G designate a lpair of complementary members forminga valve chamber into which the head D projects through apacledjournal bearing G2 in the member G', said parts G and G being clamped in coacting relation by bolts H. Between the members G and G there is clamped a plate I havingv a steam port I in the form of a sector of said plate. The plate I divides .the valve-casing G, G into cha1nbers J and J', the latter being in constant communication with the blower pipe through the port Dand the former having a iuid supply pipe K opening thereinto. Within the chamber J a disk shaped valve member L is mounted fast upon the shaft E in close proximity to the plate I, said member preferably being weldedupon said shaft. The valve member L has a sector portion removed therefrom, the radial marginal edges of said portion being indicated at M. When the blo-wer pipe C is rotatively actuated by means of the chain wheel F andshaft E, the

valve member L rotating with the shaft E closes communication between the chambers J and J except during the interval of registration with the port l of the opening formed inV said valve member between the edges M thereof. Thus thc size of the angle between the edges M accurately predetermines the arc of rotation .of the blower pipe during which steam is discharged Vfrom the nozzles of said pipe. A portion of the surface of the disk I marginal to the port I is slightly raised, as indicated at N to form a seat for the valve member L. Owing to the considerable extent of said seat and to the considerable area of the valve member under a. fluid pressure urging said member to said seat, a. large frictional resistance would oppose turning of the valve member unless disengaged from its seat preliminary to rotation. The screw threaded mounting of the chain wheel F upon the outer end of the shaft E is for the purpose of eecting the desired preliminary unseating of the valve member. Thus when the chain wheel is actuated to the right, said wheel initially7 turns upon the stud F, thus feeding inwardly relative thereto and exerting pressure upon a thrust bearing O to shift the shaft E outwardly and the valve member L clear of its seat, as is indicated in full lines in ure l. C is a yoke member rigidly projecting from the casing element G and forming a seat for the thrust bearing O. When the blowing operation is completed it is necessary to shift the shaft E inwardly to again permit the valve member to properly seat under pressure of the cleaning fluid. This inward actuation of said shaft is accomplished by a. slight reverse (or counter-clockwise) actua-tion of the chain wheelF whereby said chain wheel is turned upon the stud F and thus fed outwardly to its normal position indicated in dash lines. To prevent participation of the shaft E in the reverse travel of the chain wheel an ordinary ratchet disk P is mounted fast upon said shaft between the yoke O and casing G. A pawl P mounted upon said yoke, is engageable with the teeth of said ratchet wheel. Thus when the chain wheel is reversely actuated, the shaft E is locked by engagement of pawl P while the chain wheel is shifted upon said shaft to permit the valve member to seat.

Describing now the provision for adjustment of the pipe C longitudinally to properly position the nozzles C thereof, Q; designates a sleeve projecting integrally from the member G into the wall opening C2 and surrounding the blower pipe C. Said sleeve has a threaded portion engaged by a collar R to which collar are clamped by nuts S2 threadedly engageable at opposite sides of the collar R, the outer ends of two rods R projecting into the boiler and clamped at their inner ends by similar nuts to a collar S projecting rigidly and preferably integrally from a collar S which is clamped upon one of the boiler tubes. The threaded portion of the rods R pass through openings S3 formed through collar R, these openings being of greater diameter than the rod R whereby upon adjustment of nuts S2 the collar R and blower pipe C maybe adjusted longitudinally relative to rods R and the boiler tubes. In this manner as clearly disclosed in Figure l, the collar R is longitudinally adjustable upon the rods R and since said collar is rigidly connected to the casing Gr, G and the blower pipe is longitudinally fixed with respect to said casing, it is evident that any adjustment of the collar R will correspondingly adjust the pipe C longitudinally, thus relatively locating the blower pipe nozzles as desired relative to the boiler tubes. It is a. feature of the described adjustment means that the blower pipe can be removed without taking the boiler out of service, this being effected by simply unscrewi ng the valve casing G, G from the collar R and then withdrawing the blower pipe.

ln the modified construction shown in Figure G, T and T designate sections ofthe blower pipe connected within the wall opening U by a coupling T2. U designates a pair of collars embracing the pipe sections T and T at opposite ends of the coupling T2, and

vV is a pair of rods clamping said collars in the described relation to the coupling and connecting the collars to a collar V within the boiler and formed preferably integral with a collar V2 clamped upon one of the boiler tubes V. vNuts V5 are provided for adjustingthe collars U relative to the rods V while suitable spacers V6 may be provided if desiredto aid in maintaining the collars U in spaced relation to each other. Thus it is seen that the blower' pipe is held in any desired position of longitudinal adjustment owing to engagement of the coupling T2 between the collars U.

In the further modification illustrated in Figure 7, the blower pipe X carries a positioning member or set collar X between a pair of arms Y integrally upstauding from a positioning` member or collar Z clamped upon one of the boiler tubes Z. This construction requires the collar X to be shifted upon the blower tube X to vary the longitudinal adjustment of the blower pipe within.

the boiler.

In the alternative form of the invention disclosed in Figures 8 and 9 the blower pipe C3, ported valve seat T2, disk valve L2 and stem E2, the chain wheel F2 all correspond to the first described form of the invention. In this modification, however, a radially projecting lug` L3 is formed marginally upon the valve member L2 and is adapted to limit rotation of the valve member by engagement in the respective limiting positions with pins L4 and L5 projecting from the member I2.V Thus in either of said limiting positions (as-respecl tively indicated in dash lines and dotted lines in Figure 9) the valve member L2 closes the port I3, said port being opened during a por'` tion of an angular movement predetermined by the location of the pins L4' and L5. In this construction the chain wheel is secured fast upon the stem E2 by a pin F3.

It is also a feature of the construction just described that the positioning rods R3 which engage a bracket S5 Vcarried by one of theV boiler tubes W3 extend entirely through the wall A3 so that the nuts R4 which'clamp said rods to the collar R2 upon the sleeve Q-are accessible eXteriorly ofthe wall.

It is a common feature of the severalV described alternative adjustment devices that the blower pipe with its iiuid supply head is fixed with relation to the boiler tubes to be 4cleaned rather than through attachment of said head to the boiler wall asin the prior practice. c

The terms r-otatable or rotative, as einployed in the specification and claims of this application signify revoluble through either a partial revolution or a plurality of revolutions.

What we claim as our invention is 1, In a boiler cleaner, the combination with a discharge pipe fora cleaning fluid passing through a boiler wall, of a boiler tube eXtending adjacent said wall transversely of said pipe, positioning members for said pipe respectively engaging said pipe and said boiler tube and adjustable connections between said positioning members whereby the longitudinal position of said pipe maybe varied with respect to said boiler tube. Y Y

2. In a boiler cleaner, a discharge pipe for a cleaning fluid passing through a boiler wall,

and an adjustable connection accessible eX-V sleeve.

4. In a boiler cleaner, the combination with a discharge pipe for a cleaning fluid passing through a boiler wall, of a valve outside of said wall controlling said pipe, the casing of said valve having a sleeve extending into said wall surrounding 'said pipe, a collar upon said sleeve, a boiler tube within the boiler, a

v clamping member upon said boiler tube, and

an adjustable connection between said clamping member and said collar.

5i In combination `with a boiler havin -a plurality of boiler tubes, a cleaner there or,

including a blower pipe positioned to discharge a cleaning fluid among the said tubes,

1a member secured tothe blower pipe, a second member, .means for clamping said secondmember to one of said tubes, said second memberV having means normally preventing relative movement between the blower pipe and the said boiler tube in a direction transversely of said boiler tube, said means cooperating with said first member, and adjusting means Vforlocating said first member selectively at points along a portion of said blower pipe.

6. In `combination `with a boiler having a plurality of boiler tubes, "a boiler cleaner therefor, includingafblower pipe provided withY a nozzle for discharging cleaningfluid f among-the boiler tubes, adjustable means connecting the boiler cleaner with a boiler tube whereby the blower pipe may be positioned transversely of the boiler tubes so as to locate the saidnozzle at a predetermined point `with respect to the boiler tubes, and means for preventing movement of the blower lpipe transversely of the boiler tubes after the desired adjustment has been made.

7. In combination with a boiler having a plurality of boiler tubes, a boiler cleaner therefor, includinga blower'pipe provided nally of the blower pipe for discharging lcleaning fluid amongtlie boiler tubes, adjustable means connectingthe boiler cleaner with a boiler tube whereby' the blower pipe may be "positioned transversely of the boiler tubes so asto locate the said nozzles at predetermined points with respect to the boiler. tubes, and means vfor preventing moyement of the blower pipetransversely ofrthe boiler tubes after the desired adjustment has been made.

8. In combination with a boiler having aV plurality of boiler tubes, a boiler cleaner therefor, including a lblower pipel provided with a nozzle for discharging vcleaning fluid among the boiler tubes, and adjustable means cooperating with oneV of said boiler tubes and adapted to be iiXed to said blower pipe for positioning the blower pipe transversely of the boiler tubes so as to locate the said nozzle at a predetermined point with respect to the said boiler tubes.

` 9. "In a boiler cleaner, the combination with a blower pipe passing through a boiler wall,

of adjustable positioning means for said pipe secured to an element of the boiler interiorly of the boiler setting and projecting into the boiler wall to a position accessible from the exterior of the boiler wall for adjusting said l pipe.

10. In a boiler cleaner, the combination with a blower pipe passing through a boiler wall and positioned transversely of a plurality of boiler tubes, of vmeans for iXing said blower pipe against movement transf vwith a plurality of nozzles'spaced longitudi-f llo versely of said boiler tubes, said means including a member fixed to an element of the boiler interiorly of the boiler wall and projecting into the boiler Wall to a position accessible from the exterior of the boiler wall.

11. In a boiler cleaner, a discharge pipefor a cleaning fluid passing through a boiler wall, a head positioned exteriorly of said Wall for supplying cleaning fluid to said pipe, and positioning members anchored interiorly of the boiler and projecting outwardly Within the Wall 'for engagement with the said head.

12. In a boiler cleaner, a sectional discharge pipe for a cleaning fluid passing through a boiler wall, a coupling connecting the sections of said pipe, collars embracing said pipe sections on opposite sides of said coupling, and an adjustable connection between said collars and an element of the boiler, said boiler element being located in the interior of the said boiler.

13. In a boiler cleaner, a sectional discharge pipe for a cleaning fluid passing through a boiler Wall, a coupling connecting the sections of said discharge pipe, collars on the said pipe sections on opposite sides of the said coupling, a boiler tube Within the boiler, a clamping member upon said boiler tubel and an adjustable connection between said clamping member and said collars.

14. In a boiler cleaner, a discharge pipe for a cleaning Huid passing through a boiler Wall, a collar adjustably mounted on said discharge pipe, and a member clamped to an element located in the interior of the boiler, said member having arms embracing the collar on said discharge pipe for the purpose described.

15. In a boiler cleaner, a discharge pipe for a cleaning fluid passing through a boiler wall, a collar on said discharge pipe and adjustable longitudinally thereof, a boiler tube within the boiler, and a member clamped upon said boiler tube and having a pair of arms embracing the said collar on the said discharge pipe.

In testimony whereof We aliiX our signatures.

FRANK BOWERS. NORMAN L. SNOW. 

